If you are a fan DBZ, this is the right Game Boy Advance game for you.
This time around, you have a total of 7 different playable characters, 2 of them being fusion characters. They're also all Saiyans, as well as at least being Super Saiyans. You'll progress through the story, gaining levels and increasing your Saiyan strength & power, and ultimatly attempt to take down the great evil that is...Buu!
New additions this time around include the ability to choose where to put your stat points at(Deciding from Strength, Power and Endurance), allowing endless possiblities for your characters. Will your Vegeta have no defense whatsoever but have the ability to destroy all enemies with one swift kick? Will your Goten be an invincible character with unbreakable defenses? It's up to you.
The next new addition is equipment. Now you can equip various body, hand, feet equipment and accessories to your character to add to stats and other capabilites, such as boosting gained stat points and increasing Super Saiyan time length.
All-in-all, the game is great. Nice array of characters & abilities, as well as a good portion of an area to explore and 2 secret fusion characters to unlock. If your a DBZ fan, you should definatly get this game. If not, then you should at least check this one out.